Saint Laurent: Serial & UK Price Index
Modern Saint Laurent bags stamp an alphanumeric code inside the interior pocket following the pattern LLLNNNNNN.MMYY (e.g. GBR377828.1021): a 3-letter workshop code, a 6-digit style code matching the paper retail tag, a dot separator, and the 2-digit month + 2-digit year.
Interactive Saint Laurent Stamp Inspector & UK Valuation Check
Pre-loaded for Saint Laurent. Test sample valid stamps (GBR377828.1021, GUE498894.0422, PLB630951.1123) or enter a code from a live UK listing.
Saint Laurent Coding System: 3-Letter Workshop Prefix + 6-Digit Style Code + MMYY Date Stamp
| Production Era | Stamp / Serial Format | Archival Format & Hardware Inspection Notes |
|---|---|---|
| Pre-2013 (Yves Saint Laurent) | 6-Digit Style + 6-Digit Workshop + MMYY (123456.213317) | Kering two-part numeric stamp similar to Gucci. |
| 2013 – Present (Saint Laurent Paris) | LLLNNNNNN.MMYY (e.g. GBR377828.1021 = October 2021) | Three uppercase workshop letters (such as GBR, GUE, PLB, ALM, CFN, PMR, FLY) + 6-digit model code + dot + MMYY production month and year. |
Primary Counterfeit Red Flags for Saint Laurent
- Month digits after the dot exceeding 12 (e.g. .1522).
- 6-digit style code does not match the model silhouette (e.g. 377828 belongs to the Classic Monogram Chain Wallet, 498894 to the LouLou Small).
Saint Laurent UK Resale Price Index & Condition Bands (GBP)
90-day British resale medians across authenticated UK marketplaces compared with current 2026 UK Bond Street retail prices.
| Designer Brand | Model & UK Velocity | 2026 UK RRP | 90d UK Median | Retention & Trend | UK Condition Bands (GBP) | Arbitrage (≤ -25%) | Scam Floor | Verified Stock |
|---|---|---|---|---|---|---|---|---|
| Saint Laurent | Le 5 a 7 Supple Small Hobo (Grained Deerskin) Liquidity: Very High (avg 4 days) |
£2,150 | £1,680 | 78% (+6.1%) | Pristine: £1,820 – £1,990 Excellent: £1,520 – £1,760 Good: £1,240 – £1,460 |
≤ £1,260 | < £680 | UK Listings → |
| Saint Laurent | LouLou Small Shoulder Bag (Y-Quilted Calfskin) Liquidity: Very High (avg 5 days) |
£2,360 | £1,690 | 72% (+3.4%) | Pristine: £1,840 – £2,050 Excellent: £1,520 – £1,780 Good: £1,210 – £1,450 |
≤ £1,265 | < £670 | UK Listings → |
| Saint Laurent | Sac de Jour Nano / Baby (Souple Grained Leather) Liquidity: High (avg 7 days) |
£2,290 | £1,490 | 65% (+2.2%) | Pristine: £1,640 – £1,850 Excellent: £1,340 – £1,580 Good: £1,050 – £1,280 |
≤ £1,115 | < £590 | UK Listings → |
| Saint Laurent | Envelope Medium Chain Bag (Grain de Poudre) Liquidity: High (avg 5 days) |
£2,190 | £1,580 | 72% (+3.0%) | Pristine: £1,720 – £1,920 Excellent: £1,420 – £1,660 Good: £1,140 – £1,360 |
≤ £1,185 | < £630 | UK Listings → |
Set an Under-Market UK Alert for Saint Laurent
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Independent Editorial Archive, Non-Affiliation & Superfake Notice (Saint Laurent)
Strict Trademark & Non-Affiliation Notice: The Atelier Index is an independent UK editorial publication operating under UK nominative fair-dealing principles and is not affiliated with, endorsed by, authorised by, or sponsored by Saint Laurent or any parent luxury group (including LVMH, Kering, or Richemont). All Saint Laurent trademarks and model names remain the exclusive property of their respective owners.
Format Match ≠ Authentic Bag (Zero Liability): High-grade counterfeits (“superfakes”) routinely clone valid Saint Laurent serial numbers, date codes, and blind stamps. A format match in our inspector confirms historical code grammar only, never physical authenticity. Carly Litwin trading as The Atelier Index never physically inspects items, never issues certificates of authenticity, and accepts zero liability for any purchase or dispute on third-party marketplaces.
Inspecting a Pre-Owned Bag on eBay UK, Vestiaire, or Vinted?
Inspect the workshop stamp in five seconds, check post-2021 microchip transitions, and benchmark the asking price against 90-day British resale medians before making an offer.